PHP MailSo 库和附件

Question

我正在尝试使用MailSo库来创建MIME消息。我已经到了下一步是处理附件的地步。当附件是二进制文件时，一切都很好，但是当我尝试添加纯文本附件时

，如下所示

$rResource = "Some plain text goes here";
$sFileName = 'text.txt';
$iFileSize = strlen("Some plain text goes here");
$bIsInline = false;
$bIsLinked = false;
$sCID = $metadataCID;
$aCustomContentTypeParams = array(MailSoBaseEnumerationsEncoding::QUOTED_PRINTABLE_LOWER);
$oMessage->Attachments()->Add(
    MailSoMimeAttachment::NewInstance(
        $rResource,
        $sFileName,
        $iFileSize,
        $bIsInline,
        $bIsLinked,
        $sCID,
        $aCustomContentTypeParams
    )
);

我希望看到这种依恋

Content-Type: text/plain; charset="utf-8" 
Content-Transfer-Encoding: quoted-printable 
Content-Disposition: attachment; filename=text.txt 

但它总是强制 base64 既不将字符集添加到内容类型部分

Content-Type: text/plain; name="text.txt" 
Content-Disposition: attachment; filename="text.txt" 
Content-Transfer-Encoding: base64 

有什么提示吗？

Answer 1

看起来MailSo库将除message/rfc822以外的所有附件视为二进制文件。它将需要重写或扩展createNewMessageAttachmentBody()私有函数。